Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 10:16

General

  • Target

    5aa49622f3dafc184f903b7b78a2fd68.exe

  • Size

    8.4MB

  • MD5

    5aa49622f3dafc184f903b7b78a2fd68

  • SHA1

    28fd3345d82da0cdb565a11c648aff196f03d770

  • SHA256

    285493c54c35e3b571e28fc0816baa4b3833329eeec3649601dd6385a60c8d84

  • SHA512

    fa7c3e619eb64355927fe4fe9ce925abba4c185b85816589a8e3bdf3ca7f0e73bb6c0ca939aa3699b29085f6d694eaf90f2224446156b80839d960a997b64d6d

  • SSDEEP

    98304:YajcsQ5SggQZWfV1bihqdq7mXxUHp/nIaWl49u8cSu+A05TeKY7:cs3amByp/IpS9ASu+K

Malware Config

Extracted

Family

stealc

C2

http://193.163.7.82

Attributes
  • url_path

    /722c81812703a73d.php

Signatures

  • Detects HijackLoader (aka IDAT Loader) 1 IoCs
  • HijackLoader

    HijackLoader is a multistage loader first seen in 2023.

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 10 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5aa49622f3dafc184f903b7b78a2fd68.exe
    "C:\Users\Admin\AppData\Local\Temp\5aa49622f3dafc184f903b7b78a2fd68.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3704
    • C:\Users\Admin\AppData\Local\Temp\supernotepad_x86\ptInst.exe
      C:\Users\Admin\AppData\Local\Temp\supernotepad_x86\ptInst.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1256
      • C:\Users\Admin\AppData\Roaming\supernotepad_x86\ptInst.exe
        C:\Users\Admin\AppData\Roaming\supernotepad_x86\ptInst.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:760
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\SysWOW64\cmd.exe
          4⤵
          • Deletes itself
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2384
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            5⤵
            • Loads dropped DLL
            • Checks processor information in registry
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:4012
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Windows\SysWOW64\explorer.exe" & del "C:\ProgramData\*.dll"" & exit
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:3660
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 5
                7⤵
                • Delays execution with timeout.exe
                PID:5052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • C:\Users\Admin\AppData\Local\Temp\8d6918fb

    Filesize

    863KB

    MD5

    425e307356e2ed5c6a41867e60f44529

    SHA1

    3b9b7dc7963295bd4fca46c208219aa2eca04812

    SHA256

    d1923056887e009a05736112ff82070a3237c30b8f945f963629e419d92521c9

    SHA512

    ad8264c918281a402763dcf06082d4213c35f4210bf02ab6468ae62b0eb2f4c178fd6e1b6d11849489bfb0ebc5a426d22077839f7ce3e7842933cc33fbfa6571

  • C:\Users\Admin\AppData\Local\Temp\supernotepad_x86\autunite.vcf

    Filesize

    19KB

    MD5

    8240c2b1b55106bce4b205de628ca628

    SHA1

    202d7f1d9c2756a195411f29bedc06d574088c8f

    SHA256

    37702dbbd99aea78164d61af4d577764bb0ea358edb1fa097f40e9a9c5039d82

    SHA512

    5a1204170fed5c46572f9b41626d66225a18f701642b3b804f1005800af43d4f00388530a0a121381d42fd3f68f4e479e978c339ec11b241b2be1b1aafe6209a

  • C:\Users\Admin\AppData\Local\Temp\supernotepad_x86\msvcp140.dll

    Filesize

    427KB

    MD5

    71a0aa2d05e9174cefd568347bd9c70f

    SHA1

    cb9247a0fa59e47f72df7d1752424b33a903bbb2

    SHA256

    fdb3d86c512adff90967cb860d02a4682850ab96727f0376e4d4836504c50e47

    SHA512

    6e65520528facaa4058720eb16d6bfdcc7bb36923b7e8e6551f3526709f0fabafab123999e618438e6abe7efed4a1332547cfc988f2b24b0e3d91198b95a911a

  • C:\Users\Admin\AppData\Local\Temp\supernotepad_x86\ptInst.exe

    Filesize

    938KB

    MD5

    b15bac961f62448c872e1dc6d3931016

    SHA1

    1dcb61babb08fe5db711e379cb67335357a5db82

    SHA256

    bf1a0c67b433f52ebd304553f022baa34bfbca258c932d2b4b8b956b1467bfa5

    SHA512

    932119f7dc6710239481c80ad8baaed5c14a2085fcc514b6522671b1a4ebbaf488e43453f11d5aaf6dcef7a245db8de44d93ff255f7cf8385b7d00f31f2cc370

  • C:\Users\Admin\AppData\Local\Temp\supernotepad_x86\truancy.mp3

    Filesize

    621KB

    MD5

    6d7397b107945d59f070f46dfeb0114f

    SHA1

    56f8f27680953eb87e6301d860c066f3699a2492

    SHA256

    77b4ac6b13188c9c69717b2199ca9e844e0c32e15a61c538c6908d05994eeade

    SHA512

    073349e96484315696fdb4fe26aa2c932a3eb18030253d1ac804201a41b2f9bc2c088994e7a09407b902a3f02e230cbab28669753a027bc4cb2ce28298cc75a6

  • C:\Users\Admin\AppData\Local\Temp\supernotepad_x86\vcruntime140.dll

    Filesize

    81KB

    MD5

    16b26bc43943531d7d7e379632ed4e63

    SHA1

    565287de39649e59e653a3612478c2186096d70a

    SHA256

    346f72c9a7584c2ab6ce65cd38a616c77ebddc0bbab2274c4e89dd5e62237517

    SHA512

    b5b7b4b8c5ab4276a34956e43f586272b1803ec3609253fee1bcc0a549aed7ba11d47404b023f7b67af701726bab95cca55738e7bd5bca272eca5ac71bb418cc

  • C:\Users\Admin\AppData\Roaming\supernotepad_x86\WCLDll.dll

    Filesize

    590KB

    MD5

    ff7cf8ca0936fb896cb3cad4ef58562b

    SHA1

    4772f1a6e8445f375ca26969702ae3b3d63d9e2b

    SHA256

    3155a2327a00e2c9c5d9da09973cbf05aae4ffec1cc3f0f2f0b58a4eb6b2f55e

    SHA512

    fd993601f208a8475b0d4538b96790e31d6131da9682a912d99211ac55d4e22486ee65506ed9a5ab3ccb7e4a5fff6133982836abeda15a119ea7eaaaef86f3ad

  • memory/760-52-0x00007FFE4A330000-0x00007FFE4A525000-memory.dmp

    Filesize

    2.0MB

  • memory/760-51-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/760-53-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/760-56-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/1256-32-0x00007FFE4A330000-0x00007FFE4A525000-memory.dmp

    Filesize

    2.0MB

  • memory/1256-31-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/2384-60-0x00007FFE4A330000-0x00007FFE4A525000-memory.dmp

    Filesize

    2.0MB

  • memory/2384-59-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/2384-65-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/2384-61-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/3704-54-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/3704-2-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/3704-5-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/3704-4-0x00000000749F2000-0x00000000749F4000-memory.dmp

    Filesize

    8KB

  • memory/3704-3-0x00007FFE4A330000-0x00007FFE4A525000-memory.dmp

    Filesize

    2.0MB

  • memory/3704-0-0x00000000012B0000-0x00000000012B1000-memory.dmp

    Filesize

    4KB

  • memory/3704-7-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/3704-18-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/3704-1-0x0000000000400000-0x0000000000C87000-memory.dmp

    Filesize

    8.5MB

  • memory/3704-19-0x00000000749E0000-0x0000000074B5B000-memory.dmp

    Filesize

    1.5MB

  • memory/4012-63-0x0000000000480000-0x00000000006BD000-memory.dmp

    Filesize

    2.2MB

  • memory/4012-68-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4012-110-0x0000000000480000-0x00000000006BD000-memory.dmp

    Filesize

    2.2MB

  • memory/4012-66-0x0000000000480000-0x00000000006BD000-memory.dmp

    Filesize

    2.2MB

  • memory/4012-64-0x00007FFE4A330000-0x00007FFE4A525000-memory.dmp

    Filesize

    2.0MB

  • memory/4012-129-0x0000000000480000-0x00000000006BD000-memory.dmp

    Filesize

    2.2MB